public class DefaultInitTest{

    boolean c;
    float d;
     
    public static void main(String[] args){

        int a;
        String b = new String();
        
        DefaultInitTest test = new DefaultInitTest();

        //System.out.println("The int value initial is " + a);//报错，未进行初始化
        System.out.println("The char value initial is " + b);

        System.out.println("The boolean value initial is " + test.c);//DefultInitTest类的成员变量
        System.out.println("The float value initial is " + test.d);
        
    }
}